SOLVED !!! Problem Captcha - ReCaptcha

Hi all, I am creating a page on which you install Joomla! OSPRealhomes_template_quickstart. All well and without any errors.
For safety I want to put Captcha - Contact and registration ReCaptcha joomla. The problem is that active plugin, insert the two keys (public and private) in global configuration in joomla I put Captcha - ReCaptcha Captcha default and when I access contact gives me the following error: "The plugin ReCaptcha needs a public key It is in the configuration. Please contact the site administrator. "

Do I have to add Captcha codes in some file ?.
If I have to add, do I can say the files to edit ?.

I have understood that actvando the plugin that's enough

Thank you!!

Greetings to all.

Hi Jose,
Please submit ticket and send your site information with super admin account. I will check the issue for you.
Thanks
Dam

Ticket sent.

Dang, thank you very much!!.

Resolved in the module BT Login problem I have put in Use Captcha:
  "Builtin Captcha" and the error has disappeared.
What is not, it is because the Captcha-Recaptcha option does not appear.
Thank you very much and apologize for the inconvenience.
Cheers!!.